At least one other Auckland Transport employee has had their hard drive seized as part of an internal inquiry into roading contracts.
In an internal memo that went out to Auckland Transport staff, chief executive David Warburton said: "As you will be aware, for a number of weeks we have been conducting an investigation into both staff and external third parties in relation to serious allegations of possible misuse of public monies ... Invoice, contract and other documentation dating back to 2010 has been reviewed and a number of staff, contractor representatives and other stakeholders have been interviewed," he added.
"The first phase of that internal inquiry has concluded and we have now handed our findings over to the Serious Fraud Office."